12443233331 has 4 divisors (see below), whose sum is σ = 12458065200. Its totient is φ = 12428401464.

The previous prime is 12443233321. The next prime is 12443233339. The reversal of 12443233331 is 13333234421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12443233331 - 2⁶ = 12443233267 is a prime.

It is a super-2 number, since 2×12443233331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12443233294 and 12443233303.

It is not an unprimeable number, because it can be changed into a prime (12443233339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7414676 + ... + 7416353.

It is an arithmetic number, because the mean of its divisors is an integer number (3114516300).

Almost surely, 2^12443233331 is an apocalyptic number.

12443233331 is a deficient number, since it is larger than the sum of its proper divisors (14831869).

12443233331 is an equidigital number, since it uses as much as digits as its factorization.

12443233331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14831868.

The product of its digits is 15552, while the sum is 29.

Adding to 12443233331 its reverse (13333234421), we get a palindrome (25776467752).

The spelling of 12443233331 in words is "twelve billion, four hundred forty-three million, two hundred thirty-three thousand, three hundred thirty-one".